dare如何否定The students in the classroom -D----- not to make so

The students in the classroom dare not make so much noise.(make前不用to).
The students in the classroom do not dare (to) make so much noise.(make前to可有可无).
再问： 这题出的有问题么 ？
再答： The students in the classroom _D_____ not to make so much noise. a. need b. ought c. must d. dare 有问题， 题干中make前的to应去掉。